(PHP 5, PHP 7, PHP 8)
iconv_mime_decode — Decodes a MIME header field
$string, int $mode = 0, ?string $encoding = null): string|false
Decodes a MIME header field.
stringThe encoded header, as a string.
mode
mode determines the behaviour in the event
iconv_mime_decode() encounters a malformed
MIME header field. You can specify any combination
of the following bitmasks.
| Value | Constant | Description |
|---|---|---|
| 1 | ICONV_MIME_DECODE_STRICT |
If set, the given header is decoded in full conformance with the
standards defined in » RFC2047.
This option is disabled by default because there are a lot of
broken mail user agents that don't follow the specification and don't
produce correct MIME headers.
|
| 2 | ICONV_MIME_DECODE_CONTINUE_ON_ERROR | If set, iconv_mime_decode_headers() attempts to ignore any grammatical errors and continue to process a given header. |
encoding
The optional encoding parameter specifies the
character set to represent the result by. If omitted or null,
iconv.internal_encoding
will be used.
Returns a decoded MIME field on success,
or false if an error occurs during the decoding.
| Version | Description |
|---|---|
| 8.0.0 |
encoding is nullable now.
|
Example #1 iconv_mime_decode() example
<?php
// This yields "Subject: Prüfung Prüfung"
echo iconv_mime_decode("Subject: =?UTF-8?B?UHLDvGZ1bmcgUHLDvGZ1bmc=?=",
0, "ISO-8859-1");
?>